 It is off-label for cognitive enhancement. And I will tell you, I've taken it, and I absolutely believe the stuff works. I had a 30-hour flight one time when I was in the White House. We landed, we were 11 or 12 time zones away, and I had to go to a diplomatic event, a dinner that night, and I told the doc, I said, I don't think I'd get off this airplane by myself. He says, look, take these. It's not a shot in the butt, by the way, it's a pill.